Dilator



J. R. ROSS May 5, 1942.

DILATOR v Filed sept. 2, 1939 ilfillillilf. ilillll IN VENTOR.

0 T. E w f Patented May 5, 1942 DILATOR Joseph R. Ross, New York, N. Y.,assignor to Emma Elizabeth Ross, New York, N. Y.

Application September 2, 1939, Serial No. 293,285

(Cl. 12S-344) 4 Claims.

My present invention relates to dilators. Y vMore particularly, myinvention relates to a type of rectal dilators wherein the muscles ofthe rectum, and associated tissues, are dilated to a desired degree and,which tissues are, at the same time if desired, given a controlledmassage.

Heretofore, it has been the practice in the treatment of many diseasesof the rectum to resort to the use of various sizes of so-called rectaldilators which either are made in solid form or, of rigid constructionwith an opening provided therethrough for the escape of the rectal gasesand iiuids er, for the admission of oils, salves etc. The use of suchdilators has not been satisfactory because of their construction and,because of the very sensitiveness of the tissues, at the time oftreatment, to the use of hard rigid bodies.

Various attempts have also been made to perfect expansible dilators forsimilar uses but,

because of the types and designs and the cong structions resorted to,such dilators have, in the main, likewise failed to obtain the resultsdesired.

Having the foregoing facts in mind, the present invention was designedto not only overcome these defects but to also, after the desired degreeof ination has been obtained, enable the user, or operator, to massagethe tissues to a degree prescribed by the disease of the tissues undertreatment.

Another object of my invention is the design of a combined dilator andmassager of such simple construction and compact design as to permit ofready insertion into the anal canal and rectum; to obtain the desireddegree of dilation; to massage the tissues if desired; and to permit ofready cleaning and sterilization after the device is withdrawn.

Having the foregoing objects and advantages in mind, together with themany additional advantages which will be readily apparent to those fskilled in this art, I will now describe in detail a preferred form ofmy invention and, which is illustrated in the attached drawing, wherein:

Figure 1 is a longitudinal sectional view, partly in elevation;

Figure 2, an end View of the dilator head;

Figure 3, a longitudinal sectional view of a modified form of dilator;and,

Figure 4, a sectional view of another form of dilator head.

In Figures 1 and 2 of the drawing, I illustrate the dilator ascomprising generally, a dilator head I, a connecting block or member 2,and an inflation means 3. The dilator head I, has as its main supportingmember a cylindrical rod I0 which is provided at one end with a ange I Iand a screw threaded portion I2. A tip I3, which may be moulded of hardrubber, Bakelite, or the like, is so shaped as to permit of readyinsertion into the anus and rectum. The tip I3 has an internal bore I4one portion of which is screw threaded for engagement with the screwthreaded portion I2 of the rod I0, the other part of the bore beingdesigned to encompass one end of an expansion tube I5, and to force thesame into an air-tight joint with the flangev I I. The other end of therod I0 is likewise screw threaded into a bore I'I in the connectionblock 2.

The connection block 2 has a reduced portion I8 which terminates in aflange I9 for engagement with the inner end of the expansion tube I5, aswill later be described. Screw threads 2i] are provided upon the outerportion of the connection block for the reception of a rectal closingmember 2|, which may be made of any suitable material, such as hardrubber, Bakelite or the like. In the drawing I illustrate the bore I'Iof the connecting block as extending through the major portion thereofwhere it communicates with a second bore 22 having a screw threadedportion for the reception of a pipe 23, but it is obvious that the boreI'I could bedrilled completely through the block and the connection withthe pipe 23 made at the rear if desired.

In the form illustrated in figures land 3, the expansion tube I5 isprovided with a thickened portion and a ange at each end which form apositive seal when the parts are assembled. As before pointed out, whenthe tip I3 is properly positioned, the outer end of the expansion tubeI5 is clamped between the rod III and the tip, and tightly held thereby.At the rear end the tube I5 is securely clamped to the connection blockby the rectal closing member 2l.

The expansion tube I5 is arranged to be inflated after being projectedinto the rectal canal and, is therefore, made of a suitable materialsuch as rubber, or the like. To cause inflation of the tube I5 a bore 24is provided in the inner end of the rod IIJ which communicates with theinterior of the expansion tube at one end and with the bore I'I of theblock 2 at the other.

A compression bulb 25, having an inlet valve 2B at one end, is connectedto a bleeder valve 21 at the other end and, provides a practical andconvenient means for inflating the tube I 5. The bleeder valve 2l is ofconventional construction and has an auxiliary check valve 28 which actsto prevent the flow of air when a second compresrectum, a removableexpansible tube carried by said reinforcement member, a connecting blocksecured to one end of said reinforcement member, a bore in said blockcommunicating at one end with the interior of said expansible tube andwith an inflation means at the other, a rectal closing member secured tosaid block, and expansible and compressible means for causing apulsatory and sliding movement in said tube interposed between saidblock and said inflation means, said expansible tube being secured atone end to said block and having its free end closed to provide at alltimes an elongate bearing for longitudinal sliding engagement with thefree end of said reinforcement member.

JOSEPH R. ROSS.

